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/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char sccsid[] = "@(#)pw_copy.c 5.3 (Berkeley) 5/2/91";
#endif /* not lint */
/*
* This module is used to copy the master password file, replacing a single
* record, by chpass(1) and passwd(1).
*/
#include <pwd.h>
#include <stdio.h>
#include <string.h>
extern char *progname, *tempname;
int globcnt;
/*
* NB: Use of pw_copy() to update the insecure passwd file
* necessitates that this routine be wrapperized
* so that it can handle the formats used by both
* /etc/master.passwd and /etc/passwd
*
* pw_copy() and pw_copy_insecure() both call pw_copy_drv(), which
* does the work.
*/
static pw_copy_drv(ffd, tfd, pw, secure_format)
int ffd, tfd;
struct passwd *pw;
int secure_format;
{
register FILE *from, *to;
register int done;
register char *p;
char buf[8192];
int tmpcnt;
if (!(from = fdopen(ffd, "r")))
pw_error(_PATH_MASTERPASSWD, 1, 1);
if (!(to = fdopen(tfd, "w")))
pw_error(tempname, 1, 1);
tmpcnt=0;
for (done = 0; fgets(buf, sizeof(buf), from);) {
tmpcnt++;
if (!index(buf, '\n')) {
(void)fprintf(stderr, "%s: %s: line too long\n",
progname, _PATH_MASTERPASSWD);
pw_error(NULL, 0, 1);
}
if (done) {
(void)fprintf(to, "%s", buf);
if (ferror(to))
goto err;
continue;
}
if (!(p = index(buf, ':'))) {
(void)fprintf(stderr, "%s: %s: corrupted entry\n",
progname, _PATH_MASTERPASSWD);
pw_error(NULL, 0, 1);
}
*p = '\0';
if (strcmp(buf, pw->pw_name)) {
*p = ':';
(void)fprintf(to, "%s", buf);
if (ferror(to))
goto err;
continue;
}
globcnt = tmpcnt;
/*
* NB: /etc/passwd: insecure format does not have
* class, change and expire fields !
*/
if(secure_format)
(void)fprintf(to, "%s:%s:%d:%d:%s:%ld:%ld:%s:%s:%s\n",
pw->pw_name, pw->pw_passwd, pw->pw_uid,
pw->pw_gid, pw->pw_class, pw->pw_change,
pw->pw_expire, pw->pw_gecos, pw->pw_dir,
pw->pw_shell);
else
(void)fprintf(to, "%s:%s:%d:%d:%s:%s:%s\n",
pw->pw_name, pw->pw_passwd, pw->pw_uid,
pw->pw_gid, pw->pw_gecos, pw->pw_dir,
pw->pw_shell);
done = 1;
if (ferror(to))
goto err;
}
if (!done)
{
globcnt = tmpcnt+1;
/*
* NB: /etc/passwd: insecure format does not have
* class, change and expire fields !
*/
if(secure_format)
(void)fprintf(to, "%s:%s:%d:%d:%s:%ld:%ld:%s:%s:%s\n",
pw->pw_name, pw->pw_passwd, pw->pw_uid,
pw->pw_gid, pw->pw_class, pw->pw_change,
pw->pw_expire, pw->pw_gecos, pw->pw_dir,
pw->pw_shell);
else
(void)fprintf(to, "%s:%s:%d:%d:%s:%s:%s\n",
pw->pw_name, pw->pw_passwd, pw->pw_uid,
pw->pw_gid, pw->pw_gecos, pw->pw_dir,
pw->pw_shell);
}
if (ferror(to))
err: pw_error(NULL, 1, 1);
(void)fclose(to);
}
/*
* Standard pw_copy routine - used to update master.passwd
*/
pw_copy(ffd, tfd, pw)
int ffd, tfd;
struct passwd *pw;
{
pw_copy_drv(ffd, tfd, pw, 1);
}
/*
* Special pw_copy routine used to update insecure passwd file
*/
pw_copy_insecure(ffd, tfd, pw)
int ffd, tfd;
struct passwd *pw;
{
pw_copy_drv(ffd, tfd, pw, 0);
}
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